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71 lines
2.5 KiB
71 lines
2.5 KiB
--- a/gcc/config/arm/arm.c
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+++ b/gcc/config/arm/arm.c
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@@ -5073,6 +5073,7 @@ arm_legitimate_address_p (enum machine_m
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rtx xop1 = XEXP (x, 1);
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return ((arm_address_register_rtx_p (xop0, strict_p)
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+ && GET_CODE(xop1) == CONST_INT
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&& arm_legitimate_index_p (mode, xop1, outer, strict_p))
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|| (arm_address_register_rtx_p (xop1, strict_p)
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&& arm_legitimate_index_p (mode, xop0, outer, strict_p)));
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--- a/gcc/config/arm/arm.md
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+++ b/gcc/config/arm/arm.md
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@@ -4683,7 +4683,7 @@
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(define_expand "extendqihi2"
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[(set (match_dup 2)
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- (ashift:SI (match_operand:QI 1 "general_operand" "")
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+ (ashift:SI (match_operand:QI 1 "arm_reg_or_extendqisi_mem_op" "")
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(const_int 24)))
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(set (match_operand:HI 0 "s_register_operand" "")
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(ashiftrt:SI (match_dup 2)
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@@ -4708,7 +4708,7 @@
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(define_insn "*arm_extendqihi_insn"
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[(set (match_operand:HI 0 "s_register_operand" "=r")
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- (sign_extend:HI (match_operand:QI 1 "memory_operand" "Uq")))]
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+ (sign_extend:HI (match_operand:QI 1 "arm_extendqisi_mem_op" "Uq")))]
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"TARGET_ARM && arm_arch4"
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"ldr%(sb%)\\t%0, %1"
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[(set_attr "type" "load_byte")
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@@ -4719,7 +4719,7 @@
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(define_expand "extendqisi2"
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[(set (match_dup 2)
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- (ashift:SI (match_operand:QI 1 "general_operand" "")
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+ (ashift:SI (match_operand:QI 1 "arm_reg_or_extendqisi_mem_op" "")
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(const_int 24)))
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(set (match_operand:SI 0 "s_register_operand" "")
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(ashiftrt:SI (match_dup 2)
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@@ -4751,7 +4751,7 @@
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(define_insn "*arm_extendqisi"
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[(set (match_operand:SI 0 "s_register_operand" "=r")
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- (sign_extend:SI (match_operand:QI 1 "memory_operand" "Uq")))]
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+ (sign_extend:SI (match_operand:QI 1 "arm_extendqisi_mem_op" "Uq")))]
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"TARGET_ARM && arm_arch4 && !arm_arch6"
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"ldr%(sb%)\\t%0, %1"
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[(set_attr "type" "load_byte")
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@@ -4762,7 +4762,8 @@
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(define_insn "*arm_extendqisi_v6"
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[(set (match_operand:SI 0 "s_register_operand" "=r,r")
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- (sign_extend:SI (match_operand:QI 1 "nonimmediate_operand" "r,Uq")))]
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+ (sign_extend:SI
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+ (match_operand:QI 1 "arm_reg_or_extendqisi_mem_op" "r,Uq")))]
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"TARGET_ARM && arm_arch6"
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"@
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sxtb%?\\t%0, %1
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--- a/gcc/config/arm/predicates.md
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+++ b/gcc/config/arm/predicates.md
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@@ -239,6 +239,10 @@
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(match_test "arm_legitimate_address_p (mode, XEXP (op, 0), SIGN_EXTEND,
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0)")))
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+(define_special_predicate "arm_reg_or_extendqisi_mem_op"
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+ (ior (match_operand 0 "arm_extendqisi_mem_op")
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+ (match_operand 0 "s_register_operand")))
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+
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(define_predicate "power_of_two_operand"
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(match_code "const_int")
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{
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